Banner - Large Format Print

We need a banner (large format print) done for a promotional wall, example of wall - [login to view URL] We already have a logo in Hi-Res, however we need some type of design for the promotional wall as the current layouts we use for promotion look boring and just consist of a black background and a mesh effect blended in.. eg, [login to view URL] and [login to view URL] We need a design that is professional and corporate that stands out, the colours we would like are black and the shade of blue that glows around our website - [login to view URL] 511cm(W)*225cm(H) - 300dpi Bidders must show example of graphic work not just logo designs they have done as we are looking for someone that can do something outstanding!!